OP297FPZ

The OP297FPZ is a voltage feedback operational amplifier (Op Amp) produced by Texas Instruments. The OP297FPZ has a high power supply rejection ratio (PSRR) and low noise making it suitable for many applications in Instrumentation and Precision circuits. In this article, we will discuss the application field and working principle of the OP297FPZ.

Application Field

The OP297FPZ is suitable for a wide range of linear applications such as high-precision audio, precision instrumentation, power management, low power noise, and signal conditioning. It is designed to provide a high-gain, high-power output signal, while reducing power supply disturbances. It is also intended to remain stable under large signal swings and wide temperature changes and has a wide operating voltage range of up to ±15V.

The OP297FPZ is an excellent choice for precision instrumentation applications. It can be used in dynamic signal measurement equipment like oscilloscopes, spectrum analysers and other signal processing applications. Its low input offset voltage, low noise and low distortion make it the ideal choice for high-precision audio applications such as power amplifiers and speaker systems. The OP297FPZ makes an excellent buffer amplifier when it is needed to isolate sensitive measurements from the load. The high PSRR ensures that load currents will not interfere with sensitive measurements.

Working Principle

The OP297FPZ is a high-precision voltage feedback operational amplifier. Its main component is an operational amplifier (Op Amp) with a fixed gain of 100V/V. The input signal is applied to the non-inverting (+) input of the Op Amp and the output is obtained from the inverting (-) input. The gain is determined by the ratio of the two inputs and is set by the feedback resistor.

The Op Amp uses negative feedback to reduce distortion, improve stability, and reduce output impedance. The feedback signal is generated by comparing the output to the inverting input. If the voltage at both inputs matches, the amplifier has a gain of unity (1). If the voltage differential between the two inputs is greater, the gain increases up to the predetermined level (100V/V). The OP297FPZ also has a high PSRR that ensures that the output signal remains stable in the presence of large changes in the power supply voltage.

The OP297FPZ is a precision voltage feedback amplifier that is suitable for a wide range of linear applications. Its low input offset voltage, low noise and low distortion make it the ideal choice for high-precision audio applications. Its high PSRR also ensures that the output signal remains stable in the presence of large changes in the power supply voltage.